β Scotland Engineering Science
Scotland Β· SQASyllabus
Engineering Science syllabus, dot point by dot point
Every dot point in the Scotland Engineering Sciencesyllabus, with a focused answer for each one. Click any dot point for a worked explainer, past exam questions, and links to related dot points. Written by Claude Opus 4.8, Anthropic's latest AI.
Area 2: Electronics and control
Module overview β- How do engineers model an electronic device as a system, and what is the difference between an analogue and a digital signal?Modelling electronic devices with the input, process and output system model, and distinguishing analogue from digital signals.11 min answer β
- How do you calculate currents, voltages, resistances and power in series and parallel circuits?Ohm's law and the power relationships, and analysing series and parallel resistor networks for current, voltage, resistance and power.12 min answer β
- How do logic gates combine digital inputs to make decisions, and how do you work out the output of a combinational logic circuit?The logic gates AND, OR, NOT, NAND and NOR with their truth tables, and analysing combinational logic circuits that combine several gates.12 min answer β
- How does an operational amplifier amplify or compare voltages, and how do you calculate the gain of an inverting amplifier?The operational amplifier as an inverting amplifier with gain set by feedback resistors, as a difference amplifier, and as a comparator producing a switching output.13 min answer β
- What output devices does a control circuit drive, and how do you calculate the series resistor for an LED?Output devices such as LEDs, buzzers, motors and solenoids, interfacing them to a control circuit, and calculating the series resistor needed to protect an LED.11 min answer β
- How does a potential divider turn a sensor's changing resistance into a changing voltage for the rest of a circuit?The potential divider relationship and its use with input transducers such as the thermistor and the light-dependent resistor to produce a sensing voltage.12 min answer β
- How does a transistor let a small signal switch a large current, and how is an output device such as a motor protected?The transistor as an electronic switch driven by a small input signal, used to control output devices, with a diode to protect against the back-emf of inductive loads.11 min answer β
Area 1: Engineering contexts and challenges
Module overview β- Where does an engineered system get its energy, how is that energy converted, and how efficient is the conversion?Renewable and non-renewable energy sources, energy conversion in engineered systems, and calculating efficiency as the ratio of useful output to total input.12 min answer β
- What do the engineering disciplines do, and how does an engineer move from a problem to an evaluated solution?The main branches of engineering and how they interact, and the stages of the engineering design process from specification to evaluation.12 min answer β
- How do engineers weigh the social, economic and environmental effects of their work, and what challenges drive new engineering?The social, economic and environmental impact of engineering, sustainability and life-cycle thinking, and the global challenges that drive emerging technologies.12 min answer β
- How do engineers model any device as a system, and what is the difference between open-loop and closed-loop control?The universal system model of input, process and output, the use of block diagrams to represent systems and sub-systems, and the difference between open-loop and closed-loop control with feedback.12 min answer β
- What does the Higher Engineering Science assignment ask for, and how is it marked?An overview of the course assignment: an open-ended engineering problem solved by applying knowledge from across the course, with a report assessing analysis, simulation or construction, and evaluation.11 min answer β
Area 3: Mechanisms and structures
Module overview β- How do belt and chain drives transmit rotation between shafts, and how do you calculate torque and the power transmitted by a rotating shaft?Belt, chain and pulley drive systems and their speed ratio, the concept of torque, and the power transmitted by a rotating shaft.12 min answer β
- How does a resultant force accelerate a mass, how does friction oppose motion, and how do you calculate work and power?Newton's second law relating resultant force, mass and acceleration, the effect of friction, and calculating work done and power.12 min answer β
- How does a structure stay in equilibrium, and how do you find the support reactions of a loaded beam using moments?The conditions for static equilibrium, the principle of moments, and finding the support reactions of a simply supported loaded beam.12 min answer β
- How do the members of a framework carry load as ties and struts, and how do you find the force in a member at a joint?Members in tension (ties) and compression (struts), and finding the internal forces in a pin-jointed framework by resolving forces at a joint in equilibrium.12 min answer β
- How do you calculate the stress and strain in a loaded member, and how does Young's modulus and a factor of safety guide material choice?Direct stress and strain, Young's modulus relating them, the factor of safety, and selecting materials by their mechanical properties.12 min answer β
- How do levers and gear systems trade force for movement, and how do you calculate mechanical advantage and velocity ratio?Levers and gear systems, calculating mechanical advantage, velocity ratio and efficiency, and the gear ratio of meshing gears.12 min answer β